java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 13:02:07,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 13:02:07,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 13:02:07,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 13:02:07,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 13:02:07,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 13:02:07,741 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 13:02:07,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 13:02:07,745 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 13:02:07,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 13:02:07,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 13:02:07,747 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 13:02:07,748 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 13:02:07,751 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 13:02:07,752 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 13:02:07,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 13:02:07,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 13:02:07,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 13:02:07,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 13:02:07,771 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 13:02:07,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 13:02:07,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 13:02:07,779 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 13:02:07,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 13:02:07,780 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 13:02:07,781 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 13:02:07,782 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 13:02:07,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 13:02:07,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 13:02:07,785 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 13:02:07,785 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 13:02:07,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 13:02:07,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 13:02:07,788 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 13:02:07,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 13:02:07,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 13:02:07,792 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 13:02:07,820 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 13:02:07,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 13:02:07,821 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 13:02:07,822 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 13:02:07,822 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 13:02:07,822 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 13:02:07,822 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 13:02:07,822 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 13:02:07,823 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 13:02:07,823 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 13:02:07,823 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 13:02:07,823 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 13:02:07,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 13:02:07,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 13:02:07,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 13:02:07,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 13:02:07,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 13:02:07,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 13:02:07,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 13:02:07,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 13:02:07,827 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 13:02:07,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 13:02:07,827 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 13:02:07,828 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 13:02:07,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:02:07,828 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 13:02:07,828 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 13:02:07,828 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 13:02:07,829 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 13:02:07,829 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 13:02:07,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 13:02:07,829 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 13:02:07,829 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 13:02:07,830 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 13:02:07,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 13:02:07,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 13:02:07,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 13:02:07,906 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 13:02:07,907 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 13:02:07,907 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-19 13:02:08,267 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2f59160/d4e5aac448794957b481187f28234e4f/FLAG5655ae3dd [2018-09-19 13:02:08,643 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 13:02:08,644 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label35_true-unreach-call.c [2018-09-19 13:02:08,665 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2f59160/d4e5aac448794957b481187f28234e4f/FLAG5655ae3dd [2018-09-19 13:02:08,687 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2f59160/d4e5aac448794957b481187f28234e4f [2018-09-19 13:02:08,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 13:02:08,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 13:02:08,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 13:02:08,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 13:02:08,707 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 13:02:08,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:02:08" (1/1) ... [2018-09-19 13:02:08,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:08, skipping insertion in model container [2018-09-19 13:02:08,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:02:08" (1/1) ... [2018-09-19 13:02:08,723 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 13:02:09,580 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:02:09,612 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 13:02:09,940 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 13:02:10,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10 WrapperNode [2018-09-19 13:02:10,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 13:02:10,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 13:02:10,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 13:02:10,091 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 13:02:10,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 13:02:10,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 13:02:10,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 13:02:10,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 13:02:10,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... [2018-09-19 13:02:10,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 13:02:10,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 13:02:10,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 13:02:10,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 13:02:10,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 13:02:11,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 13:02:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 13:02:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 13:02:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 13:02:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 13:02:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 13:02:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 13:02:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 13:02:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 13:02:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 13:02:18,180 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 13:02:18,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:02:18 BoogieIcfgContainer [2018-09-19 13:02:18,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 13:02:18,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 13:02:18,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 13:02:18,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 13:02:18,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:02:08" (1/3) ... [2018-09-19 13:02:18,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:02:18, skipping insertion in model container [2018-09-19 13:02:18,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:02:10" (2/3) ... [2018-09-19 13:02:18,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c96b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:02:18, skipping insertion in model container [2018-09-19 13:02:18,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:02:18" (3/3) ... [2018-09-19 13:02:18,190 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label35_true-unreach-call.c [2018-09-19 13:02:18,201 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 13:02:18,210 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 13:02:18,269 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 13:02:18,269 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 13:02:18,270 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 13:02:18,270 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 13:02:18,270 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 13:02:18,270 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 13:02:18,270 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 13:02:18,270 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 13:02:18,271 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 13:02:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 13:02:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-19 13:02:18,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:18,313 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:18,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash -524388215, now seen corresponding path program 1 times [2018-09-19 13:02:18,322 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:18,323 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-09-19 13:02:18,326 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 13:02:18,372 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:18,372 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:18,611 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:18,618 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 13:02:18,637 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:18,805 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 79.73% of their original sizes. [2018-09-19 13:02:18,805 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:19,078 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:19,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:19,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 13:02:19,085 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:19,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 13:02:19,098 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 13:02:19,099 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:02:19,101 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 13:02:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:25,253 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 13:02:25,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 13:02:25,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-19 13:02:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:25,279 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 13:02:25,279 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 13:02:25,287 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 13:02:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 13:02:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 13:02:25,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 13:02:25,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 13:02:25,492 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 43 [2018-09-19 13:02:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:25,493 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 13:02:25,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 13:02:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 13:02:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-19 13:02:25,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:25,500 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:25,501 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:25,501 INFO L82 PathProgramCache]: Analyzing trace with hash 360966111, now seen corresponding path program 1 times [2018-09-19 13:02:25,501 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:25,502 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-19 13:02:25,502 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:25,510 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:25,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:25,707 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:25,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:25,902 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:02:25,936 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:26,247 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.06% of their original sizes. [2018-09-19 13:02:26,248 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:26,997 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:26,997 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:26,997 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:26,997 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:27,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:27,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:27,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:27,001 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 10 states. [2018-09-19 13:02:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:35,056 INFO L93 Difference]: Finished difference Result 1490 states and 2443 transitions. [2018-09-19 13:02:35,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:35,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2018-09-19 13:02:35,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:35,064 INFO L225 Difference]: With dead ends: 1490 [2018-09-19 13:02:35,064 INFO L226 Difference]: Without dead ends: 1062 [2018-09-19 13:02:35,067 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2018-09-19 13:02:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1057. [2018-09-19 13:02:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2018-09-19 13:02:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1402 transitions. [2018-09-19 13:02:35,115 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1402 transitions. Word has length 139 [2018-09-19 13:02:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:35,116 INFO L480 AbstractCegarLoop]: Abstraction has 1057 states and 1402 transitions. [2018-09-19 13:02:35,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:35,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1402 transitions. [2018-09-19 13:02:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-09-19 13:02:35,126 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:35,127 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:35,127 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:35,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1491337604, now seen corresponding path program 1 times [2018-09-19 13:02:35,127 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:35,128 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 319 with the following transitions: [2018-09-19 13:02:35,129 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:35,143 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:35,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:35,463 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:35,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:35,950 INFO L272 AbstractInterpreter]: Visited 282 different actions 833 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:02:35,990 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:36,492 INFO L232 lantSequenceWeakener]: Weakened 315 states. On average, predicates are now at 77.61% of their original sizes. [2018-09-19 13:02:36,492 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:37,099 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:37,099 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:37,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:37,099 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:37,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:37,100 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:37,101 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:37,101 INFO L87 Difference]: Start difference. First operand 1057 states and 1402 transitions. Second operand 10 states. [2018-09-19 13:02:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:46,416 INFO L93 Difference]: Finished difference Result 1799 states and 2766 transitions. [2018-09-19 13:02:46,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:46,418 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 318 [2018-09-19 13:02:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:46,426 INFO L225 Difference]: With dead ends: 1799 [2018-09-19 13:02:46,427 INFO L226 Difference]: Without dead ends: 1371 [2018-09-19 13:02:46,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 324 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2018-09-19 13:02:46,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1368. [2018-09-19 13:02:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2018-09-19 13:02:46,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1728 transitions. [2018-09-19 13:02:46,466 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1728 transitions. Word has length 318 [2018-09-19 13:02:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:46,468 INFO L480 AbstractCegarLoop]: Abstraction has 1368 states and 1728 transitions. [2018-09-19 13:02:46,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1728 transitions. [2018-09-19 13:02:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2018-09-19 13:02:46,475 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:46,476 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:46,476 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:46,476 INFO L82 PathProgramCache]: Analyzing trace with hash 939396788, now seen corresponding path program 1 times [2018-09-19 13:02:46,477 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:46,477 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 331 with the following transitions: [2018-09-19 13:02:46,478 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:46,488 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:46,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:46,811 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:47,227 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:47,228 INFO L272 AbstractInterpreter]: Visited 294 different actions 869 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:02:47,258 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:47,678 INFO L232 lantSequenceWeakener]: Weakened 327 states. On average, predicates are now at 77.6% of their original sizes. [2018-09-19 13:02:47,678 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:48,256 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:48,256 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:48,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:48,256 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:48,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:48,258 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:48,258 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:48,258 INFO L87 Difference]: Start difference. First operand 1368 states and 1728 transitions. Second operand 10 states. [2018-09-19 13:02:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:02:54,191 INFO L93 Difference]: Finished difference Result 2110 states and 3092 transitions. [2018-09-19 13:02:54,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:02:54,192 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 330 [2018-09-19 13:02:54,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:02:54,200 INFO L225 Difference]: With dead ends: 2110 [2018-09-19 13:02:54,200 INFO L226 Difference]: Without dead ends: 1682 [2018-09-19 13:02:54,202 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 336 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:02:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2018-09-19 13:02:54,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1678. [2018-09-19 13:02:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1678 states. [2018-09-19 13:02:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2057 transitions. [2018-09-19 13:02:54,239 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2057 transitions. Word has length 330 [2018-09-19 13:02:54,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:02:54,240 INFO L480 AbstractCegarLoop]: Abstraction has 1678 states and 2057 transitions. [2018-09-19 13:02:54,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:02:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2057 transitions. [2018-09-19 13:02:54,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-09-19 13:02:54,249 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:02:54,249 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:02:54,250 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:02:54,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1750250360, now seen corresponding path program 1 times [2018-09-19 13:02:54,250 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:02:54,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-09-19 13:02:54,251 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:02:54,256 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:02:54,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:02:54,479 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:02:55,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:02:55,298 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:02:55,332 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:02:55,828 INFO L232 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 77.57% of their original sizes. [2018-09-19 13:02:55,829 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:02:56,182 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:02:56,183 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:02:56,183 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:02:56,183 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:02:56,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:02:56,184 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:02:56,184 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:02:56,184 INFO L87 Difference]: Start difference. First operand 1678 states and 2057 transitions. Second operand 10 states. [2018-09-19 13:03:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:08,855 INFO L93 Difference]: Finished difference Result 2764 states and 3783 transitions. [2018-09-19 13:03:08,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:03:08,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 400 [2018-09-19 13:03:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:08,869 INFO L225 Difference]: With dead ends: 2764 [2018-09-19 13:03:08,869 INFO L226 Difference]: Without dead ends: 2336 [2018-09-19 13:03:08,871 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 406 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-09-19 13:03:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2330. [2018-09-19 13:03:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2018-09-19 13:03:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2771 transitions. [2018-09-19 13:03:08,925 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2771 transitions. Word has length 400 [2018-09-19 13:03:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:08,926 INFO L480 AbstractCegarLoop]: Abstraction has 2330 states and 2771 transitions. [2018-09-19 13:03:08,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2771 transitions. [2018-09-19 13:03:08,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-09-19 13:03:08,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:08,932 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:08,932 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:08,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1829162625, now seen corresponding path program 1 times [2018-09-19 13:03:08,933 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:08,933 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 409 with the following transitions: [2018-09-19 13:03:08,934 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:08,938 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:08,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:09,128 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:10,049 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:10,049 INFO L272 AbstractInterpreter]: Visited 295 different actions 1167 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:03:10,094 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:10,637 INFO L232 lantSequenceWeakener]: Weakened 405 states. On average, predicates are now at 77.56% of their original sizes. [2018-09-19 13:03:10,637 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:10,768 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:10,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:10,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:10,769 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:10,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:10,770 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:10,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:10,770 INFO L87 Difference]: Start difference. First operand 2330 states and 2771 transitions. Second operand 10 states. [2018-09-19 13:03:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:19,324 INFO L93 Difference]: Finished difference Result 3099 states and 4164 transitions. [2018-09-19 13:03:19,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:03:19,330 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 408 [2018-09-19 13:03:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:19,341 INFO L225 Difference]: With dead ends: 3099 [2018-09-19 13:03:19,342 INFO L226 Difference]: Without dead ends: 2671 [2018-09-19 13:03:19,345 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 414 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:19,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2018-09-19 13:03:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2665. [2018-09-19 13:03:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2018-09-19 13:03:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3152 transitions. [2018-09-19 13:03:19,404 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3152 transitions. Word has length 408 [2018-09-19 13:03:19,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:19,405 INFO L480 AbstractCegarLoop]: Abstraction has 2665 states and 3152 transitions. [2018-09-19 13:03:19,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3152 transitions. [2018-09-19 13:03:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-09-19 13:03:19,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:19,411 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:19,412 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:19,412 INFO L82 PathProgramCache]: Analyzing trace with hash 2065101670, now seen corresponding path program 1 times [2018-09-19 13:03:19,412 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:19,412 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 415 with the following transitions: [2018-09-19 13:03:19,413 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:19,417 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:19,418 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:19,463 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:20,263 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:20,263 INFO L272 AbstractInterpreter]: Visited 283 different actions 1123 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:20,272 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:20,655 INFO L232 lantSequenceWeakener]: Weakened 411 states. On average, predicates are now at 77.56% of their original sizes. [2018-09-19 13:03:20,656 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:21,248 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:21,248 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:21,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:21,249 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:21,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:21,249 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:21,250 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:21,250 INFO L87 Difference]: Start difference. First operand 2665 states and 3152 transitions. Second operand 10 states. [2018-09-19 13:03:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:27,705 INFO L93 Difference]: Finished difference Result 3423 states and 4534 transitions. [2018-09-19 13:03:27,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:03:27,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 414 [2018-09-19 13:03:27,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:27,723 INFO L225 Difference]: With dead ends: 3423 [2018-09-19 13:03:27,723 INFO L226 Difference]: Without dead ends: 2995 [2018-09-19 13:03:27,726 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 420 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2018-09-19 13:03:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2990. [2018-09-19 13:03:27,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2018-09-19 13:03:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3506 transitions. [2018-09-19 13:03:27,800 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3506 transitions. Word has length 414 [2018-09-19 13:03:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:27,801 INFO L480 AbstractCegarLoop]: Abstraction has 2990 states and 3506 transitions. [2018-09-19 13:03:27,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3506 transitions. [2018-09-19 13:03:27,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-09-19 13:03:27,806 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:27,807 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:27,807 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:27,808 INFO L82 PathProgramCache]: Analyzing trace with hash -890309474, now seen corresponding path program 1 times [2018-09-19 13:03:27,808 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:27,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-09-19 13:03:27,809 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:27,814 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:27,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:27,856 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:28,860 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:28,861 INFO L272 AbstractInterpreter]: Visited 295 different actions 1461 times. Merged at 7 different actions 30 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:28,898 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:29,284 INFO L232 lantSequenceWeakener]: Weakened 423 states. On average, predicates are now at 77.55% of their original sizes. [2018-09-19 13:03:29,284 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:29,446 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:29,446 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:29,446 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:29,447 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:29,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:29,447 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:29,448 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:29,448 INFO L87 Difference]: Start difference. First operand 2990 states and 3506 transitions. Second operand 10 states. [2018-09-19 13:03:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:34,321 INFO L93 Difference]: Finished difference Result 3768 states and 4910 transitions. [2018-09-19 13:03:34,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:03:34,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 426 [2018-09-19 13:03:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:34,336 INFO L225 Difference]: With dead ends: 3768 [2018-09-19 13:03:34,337 INFO L226 Difference]: Without dead ends: 3340 [2018-09-19 13:03:34,340 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 432 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:34,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-09-19 13:03:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3327. [2018-09-19 13:03:34,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3327 states. [2018-09-19 13:03:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 3891 transitions. [2018-09-19 13:03:34,411 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 3891 transitions. Word has length 426 [2018-09-19 13:03:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:34,412 INFO L480 AbstractCegarLoop]: Abstraction has 3327 states and 3891 transitions. [2018-09-19 13:03:34,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 3891 transitions. [2018-09-19 13:03:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-09-19 13:03:34,418 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:34,418 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:34,419 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1926329105, now seen corresponding path program 1 times [2018-09-19 13:03:34,419 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:34,420 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 443 with the following transitions: [2018-09-19 13:03:34,420 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:34,425 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:34,425 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:34,604 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:37,286 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:37,287 INFO L272 AbstractInterpreter]: Visited 295 different actions 1750 times. Merged at 7 different actions 35 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:03:37,316 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:37,974 INFO L232 lantSequenceWeakener]: Weakened 439 states. On average, predicates are now at 77.54% of their original sizes. [2018-09-19 13:03:37,974 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:38,106 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:38,106 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:38,106 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:38,107 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:38,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:38,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:38,108 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:38,108 INFO L87 Difference]: Start difference. First operand 3327 states and 3891 transitions. Second operand 10 states. [2018-09-19 13:03:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:46,926 INFO L93 Difference]: Finished difference Result 4111 states and 5313 transitions. [2018-09-19 13:03:46,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 13:03:46,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 442 [2018-09-19 13:03:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:46,943 INFO L225 Difference]: With dead ends: 4111 [2018-09-19 13:03:46,944 INFO L226 Difference]: Without dead ends: 3683 [2018-09-19 13:03:46,947 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 448 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:46,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3683 states. [2018-09-19 13:03:47,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3683 to 3665. [2018-09-19 13:03:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3665 states. [2018-09-19 13:03:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3665 states to 3665 states and 4355 transitions. [2018-09-19 13:03:47,019 INFO L78 Accepts]: Start accepts. Automaton has 3665 states and 4355 transitions. Word has length 442 [2018-09-19 13:03:47,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:47,021 INFO L480 AbstractCegarLoop]: Abstraction has 3665 states and 4355 transitions. [2018-09-19 13:03:47,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 4355 transitions. [2018-09-19 13:03:47,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2018-09-19 13:03:47,029 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:47,030 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:47,030 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:47,031 INFO L82 PathProgramCache]: Analyzing trace with hash 267927469, now seen corresponding path program 1 times [2018-09-19 13:03:47,031 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:47,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 482 with the following transitions: [2018-09-19 13:03:47,032 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:47,036 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:47,036 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:47,218 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:03:47,682 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:03:47,682 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:03:47,701 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:03:48,081 INFO L232 lantSequenceWeakener]: Weakened 478 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:03:48,082 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:03:48,226 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:03:48,226 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:03:48,226 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:03:48,226 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:03:48,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:03:48,227 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:03:48,227 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:03:48,228 INFO L87 Difference]: Start difference. First operand 3665 states and 4355 transitions. Second operand 10 states. [2018-09-19 13:03:59,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:03:59,473 INFO L93 Difference]: Finished difference Result 5718 states and 7223 transitions. [2018-09-19 13:03:59,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:03:59,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 481 [2018-09-19 13:03:59,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:03:59,491 INFO L225 Difference]: With dead ends: 5718 [2018-09-19 13:03:59,491 INFO L226 Difference]: Without dead ends: 4952 [2018-09-19 13:03:59,496 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 487 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:03:59,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2018-09-19 13:03:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 4945. [2018-09-19 13:03:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4945 states. [2018-09-19 13:03:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 5728 transitions. [2018-09-19 13:03:59,584 INFO L78 Accepts]: Start accepts. Automaton has 4945 states and 5728 transitions. Word has length 481 [2018-09-19 13:03:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:03:59,585 INFO L480 AbstractCegarLoop]: Abstraction has 4945 states and 5728 transitions. [2018-09-19 13:03:59,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:03:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4945 states and 5728 transitions. [2018-09-19 13:03:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2018-09-19 13:03:59,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:03:59,594 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:03:59,595 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:03:59,595 INFO L82 PathProgramCache]: Analyzing trace with hash -904133515, now seen corresponding path program 1 times [2018-09-19 13:03:59,595 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:03:59,595 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 494 with the following transitions: [2018-09-19 13:03:59,596 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1036], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:03:59,600 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:03:59,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:03:59,779 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:00,523 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:00,523 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:04:00,529 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:01,024 INFO L232 lantSequenceWeakener]: Weakened 490 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 13:04:01,024 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:01,132 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:01,133 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:01,133 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:01,133 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:01,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:01,134 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:01,134 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:01,134 INFO L87 Difference]: Start difference. First operand 4945 states and 5728 transitions. Second operand 10 states. [2018-09-19 13:04:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:11,909 INFO L93 Difference]: Finished difference Result 7064 states and 8742 transitions. [2018-09-19 13:04:11,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:04:11,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 493 [2018-09-19 13:04:11,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:11,927 INFO L225 Difference]: With dead ends: 7064 [2018-09-19 13:04:11,927 INFO L226 Difference]: Without dead ends: 6298 [2018-09-19 13:04:11,931 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 499 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:04:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2018-09-19 13:04:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6285. [2018-09-19 13:04:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6285 states. [2018-09-19 13:04:12,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 7258 transitions. [2018-09-19 13:04:12,029 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 7258 transitions. Word has length 493 [2018-09-19 13:04:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:12,030 INFO L480 AbstractCegarLoop]: Abstraction has 6285 states and 7258 transitions. [2018-09-19 13:04:12,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 7258 transitions. [2018-09-19 13:04:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-09-19 13:04:12,038 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:12,039 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:04:12,039 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:12,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1710384923, now seen corresponding path program 1 times [2018-09-19 13:04:12,039 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:12,040 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 513 with the following transitions: [2018-09-19 13:04:12,040 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:12,045 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:12,045 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:12,220 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:15,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:15,931 INFO L272 AbstractInterpreter]: Visited 296 different actions 2355 times. Merged at 8 different actions 64 times. Widened at 1 different actions 3 times. Found 15 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:04:15,943 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:16,755 INFO L232 lantSequenceWeakener]: Weakened 509 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:04:16,756 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:16,863 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:16,864 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:16,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:16,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:16,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:16,865 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:16,865 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:16,865 INFO L87 Difference]: Start difference. First operand 6285 states and 7258 transitions. Second operand 10 states. [2018-09-19 13:04:24,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:24,388 INFO L93 Difference]: Finished difference Result 9105 states and 11045 transitions. [2018-09-19 13:04:24,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:04:24,389 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 512 [2018-09-19 13:04:24,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:24,409 INFO L225 Difference]: With dead ends: 9105 [2018-09-19 13:04:24,409 INFO L226 Difference]: Without dead ends: 8339 [2018-09-19 13:04:24,414 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 519 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:04:24,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8339 states. [2018-09-19 13:04:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8339 to 8291. [2018-09-19 13:04:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8291 states. [2018-09-19 13:04:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8291 states to 8291 states and 9652 transitions. [2018-09-19 13:04:24,571 INFO L78 Accepts]: Start accepts. Automaton has 8291 states and 9652 transitions. Word has length 512 [2018-09-19 13:04:24,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:24,573 INFO L480 AbstractCegarLoop]: Abstraction has 8291 states and 9652 transitions. [2018-09-19 13:04:24,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:24,573 INFO L276 IsEmpty]: Start isEmpty. Operand 8291 states and 9652 transitions. [2018-09-19 13:04:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-09-19 13:04:24,587 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:24,587 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:04:24,588 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1825120392, now seen corresponding path program 1 times [2018-09-19 13:04:24,588 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:24,588 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 514 with the following transitions: [2018-09-19 13:04:24,589 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [570], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:24,594 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:24,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:24,999 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:26,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:26,637 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:04:26,645 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:27,656 INFO L232 lantSequenceWeakener]: Weakened 510 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:04:27,656 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:27,762 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:27,762 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:27,762 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:27,762 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:27,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:27,763 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:27,763 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:27,763 INFO L87 Difference]: Start difference. First operand 8291 states and 9652 transitions. Second operand 10 states. [2018-09-19 13:04:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:38,361 INFO L93 Difference]: Finished difference Result 14488 states and 17566 transitions. [2018-09-19 13:04:38,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 13:04:38,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 513 [2018-09-19 13:04:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:38,397 INFO L225 Difference]: With dead ends: 14488 [2018-09-19 13:04:38,397 INFO L226 Difference]: Without dead ends: 13357 [2018-09-19 13:04:38,405 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 520 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:04:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13357 states. [2018-09-19 13:04:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13357 to 13283. [2018-09-19 13:04:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13283 states. [2018-09-19 13:04:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 15588 transitions. [2018-09-19 13:04:38,617 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 15588 transitions. Word has length 513 [2018-09-19 13:04:38,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:38,618 INFO L480 AbstractCegarLoop]: Abstraction has 13283 states and 15588 transitions. [2018-09-19 13:04:38,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:38,618 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 15588 transitions. [2018-09-19 13:04:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-09-19 13:04:38,630 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:38,631 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:04:38,631 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash -754234736, now seen corresponding path program 1 times [2018-09-19 13:04:38,632 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:38,632 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 518 with the following transitions: [2018-09-19 13:04:38,632 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [593], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:38,637 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:38,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:38,811 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:42,127 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:42,128 INFO L272 AbstractInterpreter]: Visited 296 different actions 2058 times. Merged at 8 different actions 52 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:04:42,138 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:43,147 INFO L232 lantSequenceWeakener]: Weakened 514 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:04:43,147 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:43,265 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:43,266 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:43,266 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:43,266 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:43,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:43,267 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:43,267 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:43,267 INFO L87 Difference]: Start difference. First operand 13283 states and 15588 transitions. Second operand 10 states. [2018-09-19 13:04:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:04:53,211 INFO L93 Difference]: Finished difference Result 17037 states and 21293 transitions. [2018-09-19 13:04:53,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:04:53,211 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 517 [2018-09-19 13:04:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:04:53,251 INFO L225 Difference]: With dead ends: 17037 [2018-09-19 13:04:53,251 INFO L226 Difference]: Without dead ends: 14836 [2018-09-19 13:04:53,260 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 524 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:04:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14836 states. [2018-09-19 13:04:53,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14836 to 14721. [2018-09-19 13:04:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14721 states. [2018-09-19 13:04:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14721 states to 14721 states and 17676 transitions. [2018-09-19 13:04:53,496 INFO L78 Accepts]: Start accepts. Automaton has 14721 states and 17676 transitions. Word has length 517 [2018-09-19 13:04:53,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:04:53,497 INFO L480 AbstractCegarLoop]: Abstraction has 14721 states and 17676 transitions. [2018-09-19 13:04:53,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:04:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 14721 states and 17676 transitions. [2018-09-19 13:04:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2018-09-19 13:04:53,512 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:04:53,512 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:04:53,513 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:04:53,513 INFO L82 PathProgramCache]: Analyzing trace with hash -651043876, now seen corresponding path program 1 times [2018-09-19 13:04:53,513 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:04:53,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 521 with the following transitions: [2018-09-19 13:04:53,514 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [605], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:04:53,519 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:04:53,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:04:53,688 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:04:56,433 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:04:56,433 INFO L272 AbstractInterpreter]: Visited 296 different actions 1766 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:04:56,439 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:04:57,285 INFO L232 lantSequenceWeakener]: Weakened 517 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:04:57,285 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:04:57,652 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:04:57,652 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:04:57,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:04:57,652 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:04:57,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:04:57,653 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:04:57,653 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:04:57,653 INFO L87 Difference]: Start difference. First operand 14721 states and 17676 transitions. Second operand 10 states. [2018-09-19 13:05:08,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:05:08,202 INFO L93 Difference]: Finished difference Result 19962 states and 25822 transitions. [2018-09-19 13:05:08,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:05:08,203 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 520 [2018-09-19 13:05:08,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:05:08,257 INFO L225 Difference]: With dead ends: 19962 [2018-09-19 13:05:08,257 INFO L226 Difference]: Without dead ends: 16662 [2018-09-19 13:05:08,268 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 527 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:05:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16662 states. [2018-09-19 13:05:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16662 to 16556. [2018-09-19 13:05:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16556 states. [2018-09-19 13:05:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16556 states to 16556 states and 20518 transitions. [2018-09-19 13:05:08,504 INFO L78 Accepts]: Start accepts. Automaton has 16556 states and 20518 transitions. Word has length 520 [2018-09-19 13:05:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:05:08,504 INFO L480 AbstractCegarLoop]: Abstraction has 16556 states and 20518 transitions. [2018-09-19 13:05:08,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:05:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 16556 states and 20518 transitions. [2018-09-19 13:05:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2018-09-19 13:05:08,518 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:05:08,519 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:05:08,519 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:05:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1377426784, now seen corresponding path program 1 times [2018-09-19 13:05:08,519 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:05:08,520 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 523 with the following transitions: [2018-09-19 13:05:08,520 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:05:08,524 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:05:08,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:05:08,691 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:05:10,762 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:05:10,762 INFO L272 AbstractInterpreter]: Visited 296 different actions 1764 times. Merged at 8 different actions 43 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:05:10,796 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:05:11,505 INFO L232 lantSequenceWeakener]: Weakened 519 states. On average, predicates are now at 77.52% of their original sizes. [2018-09-19 13:05:11,505 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:05:11,605 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:05:11,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:05:11,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:05:11,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:05:11,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:05:11,606 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:05:11,607 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:05:11,607 INFO L87 Difference]: Start difference. First operand 16556 states and 20518 transitions. Second operand 10 states. [2018-09-19 13:05:21,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:05:21,887 INFO L93 Difference]: Finished difference Result 22485 states and 29787 transitions. [2018-09-19 13:05:21,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:05:21,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 522 [2018-09-19 13:05:21,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:05:21,924 INFO L225 Difference]: With dead ends: 22485 [2018-09-19 13:05:21,924 INFO L226 Difference]: Without dead ends: 17350 [2018-09-19 13:05:21,938 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 529 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:05:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17350 states. [2018-09-19 13:05:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17350 to 17249. [2018-09-19 13:05:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17249 states. [2018-09-19 13:05:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17249 states to 17249 states and 21581 transitions. [2018-09-19 13:05:22,185 INFO L78 Accepts]: Start accepts. Automaton has 17249 states and 21581 transitions. Word has length 522 [2018-09-19 13:05:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:05:22,186 INFO L480 AbstractCegarLoop]: Abstraction has 17249 states and 21581 transitions. [2018-09-19 13:05:22,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:05:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 17249 states and 21581 transitions. [2018-09-19 13:05:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2018-09-19 13:05:22,200 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:05:22,200 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:05:22,201 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:05:22,201 INFO L82 PathProgramCache]: Analyzing trace with hash 896360096, now seen corresponding path program 1 times [2018-09-19 13:05:22,201 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:05:22,201 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 526 with the following transitions: [2018-09-19 13:05:22,202 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:05:22,206 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:05:22,207 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:05:22,379 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:05:25,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:05:25,516 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:05:25,524 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:05:27,006 INFO L232 lantSequenceWeakener]: Weakened 522 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 13:05:27,006 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:05:27,107 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:05:27,107 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:05:27,108 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:05:27,108 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:05:27,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:05:27,108 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:05:27,108 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:05:27,109 INFO L87 Difference]: Start difference. First operand 17249 states and 21581 transitions. Second operand 10 states. [2018-09-19 13:05:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:05:39,802 INFO L93 Difference]: Finished difference Result 24691 states and 33201 transitions. [2018-09-19 13:05:39,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:05:39,803 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 525 [2018-09-19 13:05:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:05:39,840 INFO L225 Difference]: With dead ends: 24691 [2018-09-19 13:05:39,840 INFO L226 Difference]: Without dead ends: 18863 [2018-09-19 13:05:39,857 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 532 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:05:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18863 states. [2018-09-19 13:05:40,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18863 to 18723. [2018-09-19 13:05:40,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18723 states. [2018-09-19 13:05:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18723 states to 18723 states and 23934 transitions. [2018-09-19 13:05:40,133 INFO L78 Accepts]: Start accepts. Automaton has 18723 states and 23934 transitions. Word has length 525 [2018-09-19 13:05:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:05:40,134 INFO L480 AbstractCegarLoop]: Abstraction has 18723 states and 23934 transitions. [2018-09-19 13:05:40,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:05:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 18723 states and 23934 transitions. [2018-09-19 13:05:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2018-09-19 13:05:40,145 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:05:40,145 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:05:40,145 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:05:40,146 INFO L82 PathProgramCache]: Analyzing trace with hash -765630040, now seen corresponding path program 1 times [2018-09-19 13:05:40,146 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:05:40,146 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 527 with the following transitions: [2018-09-19 13:05:40,147 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:05:40,151 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:05:40,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:05:40,322 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:05:42,057 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:05:42,058 INFO L272 AbstractInterpreter]: Visited 296 different actions 1469 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:05:42,066 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:05:42,784 INFO L232 lantSequenceWeakener]: Weakened 523 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 13:05:42,785 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:05:42,908 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:05:42,909 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:05:42,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:05:42,909 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:05:42,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:05:42,910 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:05:42,910 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:05:42,910 INFO L87 Difference]: Start difference. First operand 18723 states and 23934 transitions. Second operand 10 states. [2018-09-19 13:05:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:05:50,529 INFO L93 Difference]: Finished difference Result 28018 states and 38584 transitions. [2018-09-19 13:05:50,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 13:05:50,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 526 [2018-09-19 13:05:50,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:05:50,574 INFO L225 Difference]: With dead ends: 28018 [2018-09-19 13:05:50,574 INFO L226 Difference]: Without dead ends: 20716 [2018-09-19 13:05:50,591 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 533 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 13:05:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20716 states. [2018-09-19 13:05:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20716 to 20545. [2018-09-19 13:05:50,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20545 states. [2018-09-19 13:05:50,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20545 states to 20545 states and 26955 transitions. [2018-09-19 13:05:50,875 INFO L78 Accepts]: Start accepts. Automaton has 20545 states and 26955 transitions. Word has length 526 [2018-09-19 13:05:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:05:50,876 INFO L480 AbstractCegarLoop]: Abstraction has 20545 states and 26955 transitions. [2018-09-19 13:05:50,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:05:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 20545 states and 26955 transitions. [2018-09-19 13:05:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-09-19 13:05:50,888 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:05:50,888 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:05:50,888 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:05:50,889 INFO L82 PathProgramCache]: Analyzing trace with hash 133880595, now seen corresponding path program 1 times [2018-09-19 13:05:50,889 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:05:50,889 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 542 with the following transitions: [2018-09-19 13:05:50,889 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1311], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:05:50,893 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:05:50,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:05:51,052 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:05:51,505 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:05:51,506 INFO L272 AbstractInterpreter]: Visited 283 different actions 1119 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 13:05:51,541 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:05:51,955 INFO L232 lantSequenceWeakener]: Weakened 538 states. On average, predicates are now at 77.49% of their original sizes. [2018-09-19 13:05:51,956 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:05:52,056 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:05:52,057 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:05:52,057 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:05:52,057 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:05:52,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:05:52,057 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:05:52,058 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:05:52,058 INFO L87 Difference]: Start difference. First operand 20545 states and 26955 transitions. Second operand 10 states. [2018-09-19 13:05:57,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 13:05:57,607 INFO L93 Difference]: Finished difference Result 30967 states and 42989 transitions. [2018-09-19 13:05:57,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 13:05:57,610 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 541 [2018-09-19 13:05:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 13:05:57,658 INFO L225 Difference]: With dead ends: 30967 [2018-09-19 13:05:57,659 INFO L226 Difference]: Without dead ends: 21843 [2018-09-19 13:05:57,679 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 547 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 13:05:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21843 states. [2018-09-19 13:05:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21843 to 21831. [2018-09-19 13:05:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21831 states. [2018-09-19 13:05:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21831 states to 21831 states and 28351 transitions. [2018-09-19 13:05:58,005 INFO L78 Accepts]: Start accepts. Automaton has 21831 states and 28351 transitions. Word has length 541 [2018-09-19 13:05:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 13:05:58,006 INFO L480 AbstractCegarLoop]: Abstraction has 21831 states and 28351 transitions. [2018-09-19 13:05:58,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 13:05:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 21831 states and 28351 transitions. [2018-09-19 13:05:58,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-09-19 13:05:58,018 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 13:05:58,019 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 13:05:58,019 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 13:05:58,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1213273030, now seen corresponding path program 1 times [2018-09-19 13:05:58,020 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 13:05:58,020 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 545 with the following transitions: [2018-09-19 13:05:58,021 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [722], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 13:05:58,025 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 13:05:58,026 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 13:05:58,171 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 13:06:01,141 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 13:06:01,142 INFO L272 AbstractInterpreter]: Visited 296 different actions 2059 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 13:06:01,149 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 13:06:02,058 INFO L232 lantSequenceWeakener]: Weakened 541 states. On average, predicates are now at 77.51% of their original sizes. [2018-09-19 13:06:02,058 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 13:06:02,215 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 13:06:02,216 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 13:06:02,216 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 13:06:02,216 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 13:06:02,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 13:06:02,217 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 13:06:02,217 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 13:06:02,217 INFO L87 Difference]: Start difference. First operand 21831 states and 28351 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 13:06:04,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 13:06:04,707 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 13:06:04,713 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 13:06:04,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:06:04 BoogieIcfgContainer [2018-09-19 13:06:04,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 13:06:04,714 INFO L168 Benchmark]: Toolchain (without parser) took 236017.80 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -609.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,716 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 13:06:04,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1390.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 245.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,717 INFO L168 Benchmark]: Boogie Preprocessor took 615.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,718 INFO L168 Benchmark]: RCFGBuilder took 7229.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 312.7 MB). Peak memory consumption was 312.7 MB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,719 INFO L168 Benchmark]: TraceAbstraction took 226531.63 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -49.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 13:06:04,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1390.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 245.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 615.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 880.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7229.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 312.7 MB). Peak memory consumption was 312.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226531.63 ms. Allocated memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -49.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was constructing difference of abstraction (21831states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (763 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 226.4s OverallTime, 20 OverallIterations, 4 TraceHistogramMax, 170.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7411 SDtfs, 24358 SDslu, 10280 SDs, 0 SdLazy, 79272 SolverSat, 5426 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 149.8s Time, PredicateUnifierStatistics: 40 DeclaredPredicates, 8734 GetRequests, 8438 SyntacticMatches, 0 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21831occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.7s AbstIntTime, 20 AbstIntIterations, 20 AbstIntStrong, 0.998189747236093 AbsIntWeakeningRatio, 0.06260181521992088 AbsIntAvgWeakeningVarsNumRemoved, 23.404584593902722 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 19 MinimizatonAttempts, 849 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_13-06-04-736.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_13-06-04-736.csv Completed graceful shutdown